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Cretaceous to Miocene age and was relatively well known since 
the investigations of ZITTEL (1883) about 100 years ago. South 
of the marine Tertiary and Late Cretaceous strata practically 
everything above the Precambrian basement was summarized as 
"Nubian Sandstone" or "Nubia Formation". The stratigraphic 
interpretation of this sequence varied from Cretaceous to an 
all-including formation of Early Palozoic to Cretaceous age. 
The common agreement was the continental origin of the Nubian 
"Sandstone". 
Based on the field investigations of KLITZSCH (1978) the former 
Nubian has been subdivided into six formations, two of which 
are mainly marine to deltaic (KLITZSCH, HARMS, LEJAL-NICOL & 
LIST 1979). These formations range in age from Jurassic to 
Late Cretaceous (Turonian/Campanian). 
In addition, Paleozoic strata have been found in the Gilf 
Kebir area and so a new and much more complete picture of the 
basin of Southwestern Egypt has evolved. 
3. Methods 
From the beginning, it was clear that extensive field work 
would be needed in combination with the intensive use of 
remote sensing methodology in order to produce results within 
a reasonable time. 
The only remote sensing data available were LANDSAT images and 
magnetic tapes - a situation probably true for a great part 
of our earth's surface. In addition, some oblique color 
photography on 35 and 70 mm film was used as interpretation 
help.